Update app.py

app.py

@@ -44,7 +44,7 @@ def get_masks(prompts, img, threhsold):
     return masks
 
 
-def extract_image(img, pos_prompts, neg_prompts, threshold, alpha_value):
+def extract_image(img, pos_prompts, neg_prompts, threshold, alpha_value=0.5):
     positive_masks = get_masks(pos_prompts, img, threshold)
     negative_masks = get_masks(neg_prompts, img, threshold)